DUNEDIN, Fla. (WFLA) – Frustrated after several previous attacks, a Dunedin man decided he needed video evidence to document his estranged wife’s behavior. Mike Novak strapped a GoPro to his belt and let it roll.

The confrontation happens in an instant. The GoPro video shows Novak reaching into his vehicle to unbuckle his twin 2-year-old sons. That’s when his wife, Corinne Novak, is seen sneaking up from behind Mike and hitting him in the testicles, according to deputies.

Investigators say it happened at about 10 a.m. on Sept. 17 in Dunedin.

“What the **** is your problem?” Mike is heard asking.

”What?” Corinne responds.” Why are you assaulting me?”

The twins’ mother was at the residence to pick up the boys for her visitation time. “She came from behind, reached between my legs and ya know … with the intent to hurt me,” Mike Novak told News Channel 8.

He said he resorted to recording his wife because of several false allegations in the past. “The main point of using the camera was to prove what she was doing, paint an accurate picture because the camera doesn’t lie,” he said.

A Pinellas County deputy viewed the GoPro video and arrested Corinne Novak. Mike is convinced she came at him from behind because she knew he had the tiny camera.

He told News Channel 8 his biggest concern is their twin boys. They are the real victims, he said.

Corrine Novak, age 37, of Belleair, was charged with one count of domestic battery. She was booked into the Pinellas County Jail and is awaiting trial.